3D has practically taken over video gaming. Lifelike, if not very pleasant, worlds exist aplenty--worlds that most users find easily navigable without any training whatsoever. Is the world of spreadsheets, word processors, and the like just unsuitable for 3D? Is it a case of "If it ain't broke, don't fix it"? Or is it that we've lacked imagination? John Littler recently talked to Hideya Kawahara about an open source 3D desktop project that he started and that Sun subsequently took under its wing.